You might want to reduce the trade xp. I spent a few hours doing trading and I now have way more levels from trade xp than anything else (level 54. Been doing pretty much just mining and trading from level 21 or so).

loudent, thanks for your feedback. I'm glad you like all the changes!About the trading experience - you're right and we plan to re-balance it. Maybe we will adjust experience bonus according to the character level (so trading will always provide good amount of experience, not too much for the low level and not too low for the high level).Regards!